Fluorescent poly

The new fluorescent poly(aryl ethers) derived from nonfluorescent monomers have gained significant attention from polymer scientists [20]. These polymers are prepared by the polymerization of phenolphthalein and its derivatives with activated aromatic difluorides. 

T. Yamamoto and H. Hayashi, ir-Conjugated soluble and fluorescent poly(thiophene-2,5-diyl)s with phenolic, hindered phenolic and /j-C6H4OCH3 substituents. Preparation, optical properties, and redox reaction, J. Polym. Set, Part A Polym. Chem., 35 463-474, 1997. 

Borisov SM, Flerrod DL, Klimant I (2009) Fluorescent poly(styrene-block-vinylpyrrolidone) nanobeads for optical sensing of pH. Sens Actuators B 139 52-58... 

A third strategy has involved increasing the label content such that the luminescent species itself acts as a modifier, which subsequently creates a new class of fluorescent poly electrolyte [20,27-42]. Copolymers of this type, containing a high degree of aromaticity have shown potential as media for efficient light harvesting... 

Yang, C.-H. A study of certain blue-fluorescent poly- 4387. 

K. Dinakaran, S.-M. Hsiao, C.-H. Chou, S.-L. Shu, and K.-H. Wei. Synthesis and characterization of an efficiently fluorescent poly(phenylenevin-ylene) possessing pendant dendritic phenyl groups. Macromolecules, 38 10429-10435, 2005. 

Synthesis and characterization of non-fluorescent poly(p-aryleneethynylene)s by alkyne metathesis. Macromolecules, 33, 9518-9521. 

Water-soluble, fluorescent, poly(phenylenevinylene) derivatives with oligo(ethylene glycol) side-chain repeat units have been synthesized via the Gilch reaction [22]. An overall yield greater than 40% could be achieved. 

Jegou, G. and S.A. Jenekhe. 2001. Highly fluorescent poly(aryleneethynylene)s containing quinoline and 3-alkylthiophene units. Macromolecules 34 7926. 

Sucrose Invertase, glucose oxidase, soybean peroxidase Enzymes covalently co-immobilized on capillary wall Fluorescence (poly (p-cresol))... 

Zhou, J. Yan, H. Zheng, Y. Wu, H., Highly Fluorescent Poly(dimeth)dsiloxane) for On-Chip Temperature Measurements. Adv. Fund. Mater. 2009,19,324-329. 

Other zero-valent nanoparticles that were incorporated in polymer nanofibers through direct dispersion electrospinning were transition metals such as superpar-amagnetic cobalt nanoparticles. Short hybrid fibers of the fluorescent poly (methylmethacrylate-co-vinylanthracene) copolymer containing cobalt nanoparticles were fabricated as magnetic micromanipulators of neurons [14]. 

S.-L. Cui, X.-F. Lin, Y.-G. Wang, J. Org. Chem. 2005, 70, 2866-2869. Parallel synthesis of strongly fluorescent poly-substituted 2,6-dicyanoanilines via microwave-promoted multicomponent reaction. 

A common problem with the use of fluorescence for quantitative analysis is that many compounds can effect quenching. Adsorptive quenching is so common that it is used in TLC to identify where a thin-layer plate may contain elution bands. In this case, the TLC plate contains a chemically bond fluorescent dye. When observed under UV irradiation, the entire plate fluoresces visibly except where the plate carries adsorbates quenching the fluorescence. Poly-mer/additive applications are not routine. 

Li, Lu and Zeng et al. present the synthesis of fluorescent poly(pyridinium) salts (15 and 16) by condensation of 4,4 -(l,4-phenylene)bis(2,6-diphenylpyrylium tetrafluoroborate) with calix[4]arene diamines (Fig. 24.5). The interaction of the polymer with label free Pseudomonas fluorescens DNA has been investigated by fluorescence titration methods and TEM, demonstrating strong interactions, predominantly relying on electrostatic interactions [25]. 

Stanimirov S, Vasilev A, Haupt E, Petkov I, Deligeorgiev T (2009) Synthesis and spectral properties of novel fluorescent poly(oxyethylene phosphate) tris(P-diketonate) europium (III) complexes. J Fluoresc 19 85-95... 

Zguris, J. Pishko, M. V. Nitric oxide sensitive fluorescent poly(ethylene glycol) hydrogel microstructures. Sens. Actuators, B 2006, B115, 503-509. 

---